The D-Link Systems, Inc. DHP-348AV Powerline AV 4-Port Switch Mini Kit is a powerline networking device designed to provide wired Ethernet connectivity in homes with existing electrical wiring. With a maximum LAN data rate of 200 Mbps, this extender includes one powerline adapter and four Ethernet ports for connecting various devices. The mini port feature allows for easy setup and the compact design makes it convenient to use in tight spaces. The D-Link brand ensures reliable performance and the kit is brand new and sealed, making it a dependable option for expanding home networking capabilities.